html,
body,
#app {
    width: 100%;
    height: 100%;
}

.mt16 {
    margin-top: 25px;
}

.el-cascader-menu {
    height: 300px;
}

.icon {
    width: 1.2em;
    height: 1.2em;
    vertical-align: -0.15em;
    fill: currentColor;
    overflow: hidden;
    margin-right: 1em;
}